CN204024666U - A kind of push-bench hobboing cutter - Google Patents
A kind of push-bench hobboing cutter Download PDFInfo
- Publication number
- CN204024666U CN204024666U CN201420467283.6U CN201420467283U CN204024666U CN 204024666 U CN204024666 U CN 204024666U CN 201420467283 U CN201420467283 U CN 201420467283U CN 204024666 U CN204024666 U CN 204024666U
- Authority
- CN
- China
- Prior art keywords
- cutter
- tapered roller
- roller bearing
- bench
- push
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Earth Drilling (AREA)
Abstract
A kind of push-bench hobboing cutter, by: cutter shaft, Zuo Daogai, floating seal, cutter hub assembly, tapered roller bearing and right cutter lid form.The carrying of this hobboing cutter is mainly installed on cutterhead by cutter shaft, supports cutter hub assembly by a pair tapered roller bearing, and then ensures that hobboing cutter has larger supporting capacity; The sealing of this hobboing cutter is provided by two pairs of floating seals, can prevent outside foul, dust, water and abrasive material etc. from invading and preventing inner fluid or lubricating grease from revealing; Effectively can improve the application life of hobboing cutter, reduce construction cost, improve efficiency of construction.
Description
Technical field
The utility model relates to a kind of push pipe machinery, especially a kind of push-bench hobboing cutter.
Technical background
Along with the quickening of China's urban construction, no-excavation construction method, thoroughly solve in pipeline construction the destruction of City Building and the blocking of road traffic, in the city of underground utilities complexity, the use of trenchless technology is considerable, and realize the key equipment of this technology---and the use of push-bench, more and more higher in the qualitative requirement of technology and equipment.Show according to onsite application statistics, push-bench causes the Hob for cutting rock of rolling blade losing efficacy to account for 80% of inefficacy Hob for cutting rock because of bearing damage, and what cause bearing heavy wear because of seal failure accounts for 30% of failing bearings.So in the course of the work, on its cutterhead, the supporting capacity of hobboing cutter and sealing performance, play decisive role to the application life of push-bench hobboing cutter to push-bench.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind ofly has relatively high supporting capacity, the push-bench hobboing cutter of stronger sealing performance.For achieving the above object, the utility model adopts following technical scheme: a kind of push-bench hobboing cutter, by: cutter shaft, Zuo Daogai, floating seal, cutter hub assembly, tapered roller bearing and right cutter lid form.Top, cutter hub assembly periphery is provided with multiple wedge shape hard-metal insert; Two cover tapered roller bearings are coaxially set up in parallel in cutter hub assembly; Two cover tapered roller bearings and Zuo Daogai, right cutter lid concentric arrange cutter shaft; Zuo Daogai, between right cutter lid and cutter hub assembly, two pairs of floating seals are set; Zuo Daogai, be realized by bolton by the screw thread be arranged on cutter lid and cutter shaft between right cutter lid and cutter shaft.It is characterized in that: adopt a pair tapered roller bearing to replace general cylinder roller bearing to realize improving the adjustment performance of hobboing cutter starting torque and to improve its supporting capacity; The two pairs of floating seals adopting pairing to use improve the sealing performance of hob device.In this hob device, a pair tapered roller bearing adopts back-to-back mounting means.The internal-and external diameter of tapered roller bearing all adopts interference fit with the fit system of phase accessory, by the pretension regulating the cutter lid at hobboing cutter two ends to regulate bearing.Often pair of floating seal is arranged in independent chamber face-to-face, wherein only has one in rotation, such that two matched seals surface is relative in the plane orthogonal with cutter shaft to rotate.
Owing to adopting technique scheme, the utility model has following superiority: the versatility of tapered roller bearing is good, and foozle is little, and precision is high, and its pretension can be adjusted according to engineering geological condition in assembling process, can ensure that each roller can both carry stressed; The floating seal of paired use, realizes sealing function by the contacting with each other of matched seal surface of precise finiss, and sealing performance is stronger, and has good centring property.Both extends the application life of hobboing cutter greatly, reduces construction cost, improves efficiency of construction.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
In figure: cutter shaft (1), Zuo Daogai (2), floating seal (3), cutter hub assembly (4), tapered roller bearing (5), You Daogai (6)
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further details:
Cutter hub assembly makes finished product by blank forging, roughing, heat treatment, semifinishing, boring, tungsten carbide button's ball tooth, fine finishining; Hard-metal insert makes finished product through Making mold, sintering, compacting, grinding; Cutter shaft, cutter lid make finished product by blank forging, roughing, heat treatment, fine finishining; After each cleaning parts of hobboing cutter is clean, the outer ring of two tapered roller bearings is loaded in the endoporus of cutter hub assembly; Right cutter lid is connected as a single entity by bolt and cutter shaft, a floating seal is loaded in the chamber of right cutter lid, the inner ring of tapered roller bearing is installed on cutter shaft simultaneously, and the inner face of cutter lid of keeping right location; A floating seal is loaded in the chamber of cutter hub assembly right-hand member, then cutter hub assembly is installed on cutter shaft, this completes the installation of hob device right-hand member; The installation of hob device left end is consistent with above-mentioned steps.
Claims (4)
1. a push-bench hobboing cutter, by: cutter shaft, Zuo Daogai, floating seal, cutter hub assembly, tapered roller bearing and right cutter lid form; It is characterized in that: top, cutter hub assembly periphery is provided with multiple wedge shape hard-metal insert; A pair tapered roller bearing is coaxially set up in parallel in cutter hub assembly; A pair tapered roller bearing and Zuo Daogai, right cutter lid concentric arrange cutter shaft; Zuo Daogai, between right cutter lid and cutter hub assembly, two pairs of floating seals are set; Zuo Daogai, be realized by bolton by the screw thread be arranged on cutter lid and cutter shaft between right cutter lid and cutter shaft.
2. a kind of push-bench hobboing cutter according to claim 1, is characterized in that: in this hobboing cutter, a pair tapered roller bearing adopts back-to-back mounting means.
3. a kind of push-bench hobboing cutter according to claim 1, is characterized in that: the internal-and external diameter of tapered roller bearing all adopts interference fit with the fit system of phase accessory, by the pretension regulating the cutter lid at hobboing cutter two ends to regulate bearing.
4. a kind of push-bench hobboing cutter according to claim 1, is characterized in that: often pair of floating seal is arranged in independent chamber face-to-face, wherein only has one in rotation, such that two matched seals surface is relative in the plane orthogonal with cutter shaft to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467283.6U CN204024666U (en) | 2014-08-13 | 2014-08-13 | A kind of push-bench hobboing cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467283.6U CN204024666U (en) | 2014-08-13 | 2014-08-13 | A kind of push-bench hobboing cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204024666U true CN204024666U (en) | 2014-12-17 |
Family
ID=52064550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420467283.6U Active CN204024666U (en) | 2014-08-13 | 2014-08-13 | A kind of push-bench hobboing cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204024666U (en) |
-
2014
- 2014-08-13 CN CN201420467283.6U patent/CN204024666U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204299581U (en) | A kind of push-bench is " twolip middle tooth cutter with 13 | |
| CN204299580U (en) | A kind of push-bench is " single-blade middle tooth cutter with 13 | |
| CN204024666U (en) | A kind of push-bench hobboing cutter | |
| CN204818986U (en) | Blade cutting edge grinding machine main shaft structure | |
| CN204299582U (en) | A kind of push-bench is " twolip taper middle tooth cutter with 13 | |
| CN102418532A (en) | Disk-shaped heavy hob for hard rock tunneling machine | |
| CN104162466B (en) | Roller of high-pressure roller mill with potassium steel roll surface | |
| CN102747961A (en) | Cone bit with high speed and high temperature resistances suitable for underground power drill tool | |
| CN206429244U (en) | Hard rock push-bench cutterhead | |
| CN102913688A (en) | Delivery pipe, manufacturing method thereof and concrete pumping device | |
| CN108138568A (en) | For the holding ring cutter assembly of tunnel boring machine | |
| CN107790241A (en) | Ball mill magnetizes abrasion-proof backing block | |
| CN202012318U (en) | Mill shoes | |
| CN204703768U (en) | Thrust block lubricates compensation mining cone bit | |
| CN203891772U (en) | Steel PDC bit | |
| CN202182124U (en) | Clutch for engineering drilling machine | |
| CN206112052U (en) | Joint gear box clutch release fork mechanism | |
| CN204051773U (en) | With the roller of high-pressure roller mill of potassium steel roll surface | |
| CN204082907U (en) | Magnetic suspension bearing for turbodrill saves | |
| CN203823312U (en) | Multi-channel rotating joint | |
| CN204113885U (en) | Helicoid hydraulic motor cemented carbide axle mechanical axis holds | |
| CN204300150U (en) | Boring cutter water channel coupling | |
| CN202129124U (en) | Ball mill mineral-feeding eccentric pipe sealing device | |
| CN205618163U (en) | Cutter for shaft drilling machine of high abrasion | |
| CN203823296U (en) | High-pressure high-speed rotating joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 471000, 139, Fengrun East Road, hi tech Development Zone, Henan, Luoyang Patentee after: LUOYANG JIUJIU TECHNOLOGY CO., LTD. Address before: 471000, 139, Fengrun East Road, hi tech Development Zone, Henan, Luoyang Patentee before: Luoyang Jiujiu Technology Development Co., Ltd. |